NANDJ_ Find flash media and keep out ERROR FIX!

This is true, I own a repair shop and a customer tried a home repair and got this. The problem is with the seating of the front camera assembly. Sometimes it seems like it's down properly but it's not. Like Tyler said above, take the connector out and boot it. Then seat it properly and see if it still works. Well done Tyler. Not many people post this up when they find the problem.

"I had been struggling with this issue for the better part of 3 weeks until I finally found a solution. I haven't seen it mentioned here -

-In my case, my problem had started with the NAND error after putting a new screen on.

-Put the old cracked screen on and it seemed to work.

-After unplugging and plugging the new screen in a bunch of times AND doing the restore, it seemed to boot correctly.

-Once in a while the phone would shut down and boot back to the NAND error again, and after about 20 resets it would somehow 'luckily' boot correctly.

-After about 2 more weeks, it stopped ever booting correctly and booted only to the NAND screen ever no matter what I did.

-I tried to do the DFU Mode / Restore thing again since that had worked once before.

-Still no dice.

-I READ ON THE GSM FORUM ABOUT THE COMPASS IC which is SUPER CLOSE to where the Front Camera Flex Cable plugs in. A user said just to remove it. I have no soldering experience so I simply pried it off with a metal clip.

-Voila, finally got passed the -4013 error in the Restore screen, and now I have a functional phone again, probably without a compass feature, but I have been trying to make this phone last as I am still under contract for a couple more months.

It makes sense to me that possibly people are damaging this tiny sensitive chip when swapping screens, and that is causing the hardware check to fail upon boot. The only thing that has changed in my phone's functionality now is that the compass app doesn't work. Maps, etc. still function fine."

"Nand Flash Errors at Boot up are usually caused by the iPhone 5, 5S, and 5C Front Camera/Proximity Flex Cable. Its either a damaged cable or the connector is on incorrectly. Sometimes when connectors on wrong u will get a RED Screen of Death. Do not Panic....Just swap out the Front Camera/ Proximity Flex Cable and you will be ok.

I have also seen Nand Flash errors on iPad 4G as well. I fixed this by replacing one of the flex cables. You just have to disconnect each flex cable at bootup 1 by 1 until you figure which is bad . Then replace it.......

FYI.... On the 5S and 5C be real careful when connecting the Prox cable. The Connector is offset and may snap in the wrong way...Be Careful......

Update

''Hey guys...As to NAND FLASH ERROR at boot.....

We have repaired over 5,000 iPhones in the last 2 years and have seen the NAND FLASH ERROR only about 10 times total. Each time on iPhone 5/5S/5C i was able to simply replace Front Camera/Proximity Sensor Flex Cable with a new one and error would go away 100% of the time..... FYI' do not panic !!!!!http://forums.imore.com/iphone-5/279618-..."

Had this problem on an iPad 4 Retina... Replaced the back camera and all was fine. :)

"HI GUYS,

m a mobile repair tech in australia since 7 years now and own few franchises here in same field..(repair and unlocking)

the whole thing which goes wrong while we take off the proximity cable in iphone 5 is it shorts with the lcd bezel (alluminium plate under lcd).

and secondly , what i experienced is when u take off the proxy flex from board and put it back on.. make sure u take ur time and b calm and gentle. try to use tweesers to the best possible.(non stativ ones)

i 2 iphone 5 board by changing screens with my metal screw driver and hands.. .coz of static current in human body..

NICE POST.."

From my experience, it has been a broken/ripped power button flex cable. This has happened to me twice and I replaced it both times - fixing the issue.